800921079347 has 2 divisors, whose sum is σ = 800921079348. Its totient is φ = 800921079346.

The previous prime is 800921079331. The next prime is 800921079349. The reversal of 800921079347 is 743970129008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 800921079347 - 2⁴ = 800921079331 is a prime.

Together with 800921079349, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 800921079295 and 800921079304.

It is not a weakly prime, because it can be changed into another prime (800921079349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400460539673 + 400460539674.

It is an arithmetic number, because the mean of its divisors is an integer number (400460539674).

Almost surely, 2^800921079347 is an apocalyptic number.

800921079347 is a deficient number, since it is larger than the sum of its proper divisors (1).

800921079347 is an equidigital number, since it uses as much as digits as its factorization.

800921079347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 800921079347 in words is "eight hundred billion, nine hundred twenty-one million, seventy-nine thousand, three hundred forty-seven".